This paper presents an efficient solution for the booking and payments functionality of a car sharing system
that allows individuals to share their personal, underused cars in a completely decentralized manner, annulling
the need of an intermediary. Our solution, named SC2Share, leverages smart contracts and uses them to carry
out secure and private car booking and payments. Our experiments on SC2Share on the Ethereum testnet
guarantee high security and privacy to its users and confirm that our system is cost-efficient and ready for
practical use.